before text
\newlevel{          % 4
	\{x^2\}
	body goes here
	\mycommand{         % 2
		argument text
		argument text
		argument text
		\nested[        % 1
			\[x^2\]
			first opt-arg]
		{
			first mand arg
			\fourthcommand{
				\{ x^2\}\[x^2\]
				fourth command argument body
				fourth command argument body
				fourth command argument body
			}
		}
	} after text
	\anothercommand{    % 3
		another argument text
		another argument text
		another argument text
	}% after text
}
